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Contact Information:

Zachary Vex Effects
PO Box 16078
Minneapolis, MN 55416




4301 HW7 Dock 3
St. Louis Park
United States


ZVEX makes effects pedals and amps for guitar and bass and we've been at it since 1995. Our line is a unique blend of no-rules engineering and artistic whim, from our affordable Vexter series to our hand painted and custom designed items.

Jonny Overload


Jonny Overload


Jonny Overload


This is a unique mod of the Jonny Octave, only a handful remain!

Hand painted pedals feature a lifetime warranty. Colors and details may vary.

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The Jonny Overload™ is a ferociously distorted octave-up pedal
designed to raise the apparent pitch of single notes on your guitar by
one or two octaves and cause explosive results when playing two or
possibly three notes at once. Playing more notes than that can result
in tumultuous noise. From left to right the controls are Octave 2
Volume and Octave 1 Volume. The two switches are, from left to right,
Octave 1/Octave 2 selector switch and True Bypass switch. To use the
unit, turn on the bypass switch and then select the relatively tame
Octave 1 position (indicated by led) or the wild Octave 2.

Pedal Dimensions (LxWxH):  4.70" x 2.38" x 1.82"

Instructions (PDF)